Mersen B1023432 - NH-vertical fuse rail BSL Size NH3 690VAC 630A 3-Pole Bus bar system 185 mm With cable connection Screw - M12 insert nut
Mersen

B1023432

Alternate Item Number: BL3E403K000


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Overview

The Mersen BSL NH-vertical fuse rail system (SKU: B1023432) is engineered for robust and safe electrical distribution, specifically designed for NH fuse-links in accordance with IEC/EN 60269-2 and VDE 0636-2 standards. This particular model is a Size NH3 unit, rated for 630A and 690VAC, featuring a 3-pole configuration. It is built for direct installation onto 185 mm bus bar systems, offering a modular approach for flexible system assembly. The BSL series is recognized for its touch-protected IP20 rating, ensuring enhanced safety during installation and maintenance operations. The cable connection is facilitated by a screw terminal with an M12 insert nut, providing a secure and reliable connection point for conductors. This system allows for fast and easy installation, crucial in industrial environments where downtime is minimized. The Mersen BSL fuse rails are available in various sizes to accommodate different current ratings: Size 1 (250A), Size 2 (400A), and Size 3 (630A), all compatible with 185 mm bus bar systems. The modular design of the BSL system empowers users to configure their electrical infrastructure with individual components, leading to a high degree of protection and operational efficiency. This product is manufactured in the US.
  • Mersen BSL NH-vertical fuse rail, Size NH3
  • Rated for 630A and 690VAC
  • 3-pole configuration for triple pole arrangements
  • Designed for 185 mm bus bar systems
  • Touch-protected IP20 rating
  • Screw connection with M12 insert nut

Specifications

AC Voltage Rating
690 V
Amperage Rating
630 A
Application
Feeder pillarsCable distribution cabinetsLow voltage distribution units
Brand Name
Mersen
Connection
Screw
Mounting
Bus bar system 185 mm
Number Of Poles
3
Size
4.84 x 3.86 x 21.97;122.936 x 98.044 x 558.038 in;mm
Special Features
Installation on to 185 mm bus bar systemDimensions of bus bars and cable terminal connections are equivalent to those of MULTIVERT®
Standard
IEC 60 269-1, IEC 60 269-2For NH-fuse links size 1, 2, 3 in accordance with IEC/EN 60 269-2, VDE 0636-2
Type
IEC NH Fuse Rails
Package Dimensions (L x W x H)
4.84 in x 3.86 in x 21.97 in
Package Dimensions (L x W x H)
122.936 mm x 98.044 mm x 558.038 mm
Package Weight (Imperial)
9.259 lb
Package Weight (Metric)
4.200 kg
NH-vertical fuse rail BSL Size NH3 690VAC 630A 3-Pole Bus bar system 185 mm With cable connection Screw - M12 bolts

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NH-vertical fuse rail BSL Size NH3 690VAC 630A 3-Pole Bus bar system 185 mm With cable connection Screw - M12 bolts
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Frequently Asked Questions about Mersen

What industries and applications are Mersen products used for?

Mersen products are used across diverse industrial sectors including solar power, electric vehicles, buildings/construction, industrial automation, power distribution, HVAC, elevators, telecommunications, and specialty manufacturing. Key application areas include circuit protection, surge protection, battery module protection, electrical safety systems, and power management for residential, commercial, and utility-scale installations.

What are the main product lines offered by Mersen?

Mersen offers five primary electrical power product lines: IEC and UL/CSA Fuses and Fusegear, Surge Protection, Low Voltage Disconnect Switches, Power Distribution Blocks, and Engineered Solutions. Their comprehensive range includes specialized components like high-speed fuses, modular fuse holders, surge arresters, and custom-engineered electrical protection systems for industrial and power management applications.

What are the key features of Mersen products?

Mersen products feature advanced electrical protection and power management solutions with key characteristics including finger-safe design, compact modularity, and high-performance safety features. Their product lines span electrical power components like fuses, surge protection, power distribution blocks, and specialized solutions for industrial, solar, and building applications. Critical features include UL/CSA approvals, high short-circuit current ratings, and innovative technologies like the Fuse Control™ program that minimize electrical risks and optimize system performance.

What environmental ratings do Mersen products have?

Mersen products meet rigorous environmental ratings across multiple standards, including UL 508A Type 1, 2, 3, 4, 4X, 12, and 13, CSA Type 1, 2, 3, 4, 4X, 12, and 13, and NEMA Type 1, 2, 3, 4, 4X, 12, and 13. They feature IEC 60529 IP66 protection, with enhanced UV inhibitors for outdoor weathering and operating temperatures ranging from -40°C to 130°C (-40°F to 266°F). These ratings ensure superior protection in wet, corrosive, and challenging industrial environments.

What accessories are available for Mersen products?

Mersen offers multiple accessories for their fuse blocks and systems, including safety pullers (DFC3M and DFC3LP), DIN-rail adapters (DRM), bus bars, auxiliary contacts, and specialized mounting hardware. Key accessories include the DFC3M safety puller for 1-1/2" x 13/32" midget or Class CC fuses, the DRM adapter for mounting 303 series fuse blocks on DIN-rail, and UltraSafe fuse module accessories like bus bars and auxiliary contacts that enable module interconnection and monitoring.

How are Mersen products typically installed?

Mersen products are typically installed in electrical distribution systems, control panels, and industrial automation environments using multiple mounting options. These include service entrance panel mounting, distribution panel installation, control panel DIN rail mounting, and custom engineered solutions like Fused Coordination Panelboards. Installation depends on the specific product type, such as fuses, surge protective devices, or switches, and is designed to provide electrical protection and circuit safety in various industrial and commercial applications.

What certifications and standards do Mersen products comply with?

Mersen products are certified to multiple international standards, including UL (Underwriters Laboratories), CSA (Canadian Standards Association), CCC (China Compulsory Certification), and EAC (Eurasian Conformity). Our products meet rigorous safety and performance standards for industrial applications across North America, China, Russia, and other global markets, ensuring compliance and reliability in electrical power and advanced materials solutions.

What technical support does Mersen offer?

Mersen provides comprehensive technical support through multiple channels, including technical experts located in your time zone who can assist with product selection, application guidance, and troubleshooting. Their Fuse Control™ program offers a free Fuse Inventory Audit & Analysis, and customers can access technical resources through their sales representatives and online platform ep.mersen.com.